Wireless charger



FIG. 1 is a front, right and bottom perspective view of a wireless charger showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left view thereof;

FIG. 5 is a right view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof; and,

FIG. 8 is a perspective view, showing the foldable part in a closed position.

The broken lines in the drawings illustrate features of the wireless charger that form no part of the claimed design. 

CLAIM The ornamental design for a wireless charger, as shown and described. 